Execution Chart

We display below the execution chart for this examination (boot time has been removed).

Trace from the execution

Formatting '/data/fkordon/mcc2021-input.r007-tall-162037990000439.qcow2', fmt=qcow2 size=4294967296 backing_file='/data/fkordon/mcc2021-input.qcow2' encryption=off cluster_size=65536 lazy_refcounts=off
Waiting for the VM to be ready (probing ssh)
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=====================================================================
Generated by BenchKit 2-4028
Executing tool itstools
Input is AutoFlight-PT-05a, examination is ReachabilityFireability
Time confinement is 3600 seconds
Memory confinement is 16384 MBytes
Number of cores is 4
Run identifier is r007-tall-162037990000439
=====================================================================

--------------------
preparation of the directory to be used:
/home/mcc/execution
total 448K
-rw-r--r-- 1 mcc users 16K May 5 16:58 CTLCardinality.txt
-rw-r--r-- 1 mcc users 155K May 5 16:58 CTLCardinality.xml
-rw-r--r-- 1 mcc users 9.2K May 5 16:58 CTLFireability.txt
-rw-r--r-- 1 mcc users 91K May 5 16:58 CTLFireability.xml
-rw-r--r-- 1 mcc users 4.2K May 6 14:48 GenericPropertiesDefinition.xml
-rw-r--r-- 1 mcc users 6.6K May 6 14:48 GenericPropertiesVerdict.xml
-rw-r--r-- 1 mcc users 3.4K Mar 28 15:44 LTLCardinality.txt
-rw-r--r-- 1 mcc users 25K Mar 28 15:44 LTLCardinality.xml
-rw-r--r-- 1 mcc users 1.9K Mar 28 15:44 LTLFireability.txt
-rw-r--r-- 1 mcc users 16K Mar 28 15:44 LTLFireability.xml
-rw-r--r-- 1 mcc users 4.0K Mar 23 01:47 ReachabilityCardinality.txt
-rw-r--r-- 1 mcc users 22K Mar 23 01:47 ReachabilityCardinality.xml
-rw-r--r-- 1 mcc users 2.5K Mar 22 10:16 ReachabilityFireability.txt
-rw-r--r-- 1 mcc users 15K Mar 22 10:16 ReachabilityFireability.xml
-rw-r--r-- 1 mcc users 1.6K Mar 22 09:09 UpperBounds.txt
-rw-r--r-- 1 mcc users 3.6K Mar 22 09:09 UpperBounds.xml
-rw-r--r-- 1 mcc users 6 May 5 16:51 equiv_col
-rw-r--r-- 1 mcc users 4 May 5 16:51 instance
-rw-r--r-- 1 mcc users 6 May 5 16:51 iscolored
-rw-r--r-- 1 mcc users 36K May 5 16:51 model.pnml

--------------------
content from stdout:

=== Data for post analysis generated by BenchKit (invocation template)

The expected result is a vector of booleans
BOOL_VECTOR

here is the order used to build the result vector(from text file)
FORMULA_NAME AutoFlight-PT-05a-ReachabilityFireability-00
FORMULA_NAME AutoFlight-PT-05a-ReachabilityFireability-01
FORMULA_NAME AutoFlight-PT-05a-ReachabilityFireability-02
FORMULA_NAME AutoFlight-PT-05a-ReachabilityFireability-03
FORMULA_NAME AutoFlight-PT-05a-ReachabilityFireability-04
FORMULA_NAME AutoFlight-PT-05a-ReachabilityFireability-05
FORMULA_NAME AutoFlight-PT-05a-ReachabilityFireability-06
FORMULA_NAME AutoFlight-PT-05a-ReachabilityFireability-07
FORMULA_NAME AutoFlight-PT-05a-ReachabilityFireability-08
FORMULA_NAME AutoFlight-PT-05a-ReachabilityFireability-09
FORMULA_NAME AutoFlight-PT-05a-ReachabilityFireability-10
FORMULA_NAME AutoFlight-PT-05a-ReachabilityFireability-11
FORMULA_NAME AutoFlight-PT-05a-ReachabilityFireability-12
FORMULA_NAME AutoFlight-PT-05a-ReachabilityFireability-13
FORMULA_NAME AutoFlight-PT-05a-ReachabilityFireability-14
FORMULA_NAME AutoFlight-PT-05a-ReachabilityFireability-15

=== Now, execution of the tool begins

BK_START 1620469435148

Running Version 0
[2021-05-08 10:23:56] [INFO ] Running its-tools with arguments : [-pnfolder, /home/mcc/execution, -examination, ReachabilityFireability, -spotpath, /home/mcc/BenchKit/bin//..//ltlfilt, -z3path, /home/mcc/BenchKit/bin//..//z3/bin/z3, -yices2path, /home/mcc/BenchKit/bin//..//yices/bin/yices, -its, -ltsmin, -greatspnpath, /home/mcc/BenchKit/bin//..//greatspn/, -order, META, -manyOrder, -smt, -timeout, 3600]
[2021-05-08 10:23:56] [INFO ] Parsing pnml file : /home/mcc/execution/model.pnml
[2021-05-08 10:23:56] [INFO ] Load time of PNML (sax parser for PT used): 44 ms
[2021-05-08 10:23:56] [INFO ] Transformed 132 places.
[2021-05-08 10:23:56] [INFO ] Transformed 130 transitions.
[2021-05-08 10:23:56] [INFO ] Found NUPN structural information;
[2021-05-08 10:23:56] [INFO ] Parsed PT model containing 132 places and 130 transitions in 83 ms.
Parsed 16 properties from file /home/mcc/execution/ReachabilityFireability.xml in 8 ms.
Working with output stream class java.io.PrintStream
Ensure Unique test removed 25 transitions
Reduce redundant transitions removed 25 transitions.
Incomplete random walk after 10000 steps, including 299 resets, run finished after 80 ms. (steps per millisecond=125 ) properties (out of 16) seen :10
FORMULA AutoFlight-PT-05a-ReachabilityFireability-15 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA AutoFlight-PT-05a-ReachabilityFireability-14 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA AutoFlight-PT-05a-ReachabilityFireability-13 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA AutoFlight-PT-05a-ReachabilityFireability-11 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA AutoFlight-PT-05a-ReachabilityFireability-10 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA AutoFlight-PT-05a-ReachabilityFireability-09 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA AutoFlight-PT-05a-ReachabilityFireability-08 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA AutoFlight-PT-05a-ReachabilityFireability-06 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA AutoFlight-PT-05a-ReachabilityFireability-02 TRUE TECHNIQUES TOPOLOGICAL RANDOM_WALK
FORMULA AutoFlight-PT-05a-ReachabilityFireability-01 FALSE TECHNIQUES TOPOLOGICAL RANDOM_WALK
Incomplete Best-First random walk after 10001 steps, including 40 resets, run finished after 31 ms. (steps per millisecond=322 ) properties (out of 6) seen :0
Incomplete Best-First random walk after 10001 steps, including 46 resets, run finished after 17 ms. (steps per millisecond=588 ) properties (out of 6) seen :0
Incomplete Best-First random walk after 10001 steps, including 41 resets, run finished after 26 ms. (steps per millisecond=384 ) properties (out of 6) seen :1
FORMULA AutoFlight-PT-05a-ReachabilityFireability-04 TRUE TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
Incomplete Best-First random walk after 10001 steps, including 34 resets, run finished after 15 ms. (steps per millisecond=666 ) properties (out of 5) seen :0
Incomplete Best-First random walk after 10001 steps, including 42 resets, run finished after 13 ms. (steps per millisecond=769 ) properties (out of 5) seen :1
FORMULA AutoFlight-PT-05a-ReachabilityFireability-07 TRUE TECHNIQUES TOPOLOGICAL BESTFIRST_WALK
Incomplete Best-First random walk after 10001 steps, including 44 resets, run finished after 17 ms. (steps per millisecond=588 ) properties (out of 4) seen :0
Running SMT prover for 4 properties.
// Phase 1: matrix 105 rows 132 cols
[2021-05-08 10:23:57] [INFO ] Computed 34 place invariants in 15 ms
[2021-05-08 10:23:57] [INFO ] [Real]Absence check using 33 positive place invariants in 16 ms returned sat
[2021-05-08 10:23:57] [INFO ] [Real]Absence check using 33 positive and 1 generalized place invariants in 3 ms returned sat
[2021-05-08 10:23:57] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2021-05-08 10:23:57] [INFO ] [Real]Absence check using state equation in 50 ms returned sat
[2021-05-08 10:23:57] [INFO ] Solution in real domain found non-integer solution.
[2021-05-08 10:23:57] [INFO ] [Nat]Absence check using 33 positive place invariants in 17 ms returned sat
[2021-05-08 10:23:57] [INFO ] [Nat]Absence check using 33 positive and 1 generalized place invariants in 5 ms returned sat
[2021-05-08 10:23:57] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2021-05-08 10:23:57] [INFO ] [Nat]Absence check using state equation in 85 ms returned sat
[2021-05-08 10:23:57] [INFO ] State equation strengthened by 25 read => feed constraints.
[2021-05-08 10:23:57] [INFO ] [Nat]Added 25 Read/Feed constraints in 6 ms returned sat
[2021-05-08 10:23:57] [INFO ] Computed and/alt/rep : 97/241/97 causal constraints (skipped 7 transitions) in 24 ms.
[2021-05-08 10:23:57] [INFO ] Added : 95 causal constraints over 20 iterations in 251 ms. Result :sat
Attempting to minimize the solution found.
Minimization took 6 ms.
[2021-05-08 10:23:57] [INFO ] [Real]Absence check using 33 positive place invariants in 6 ms returned sat
[2021-05-08 10:23:57] [INFO ] [Real]Absence check using 33 positive and 1 generalized place invariants in 0 ms returned sat
[2021-05-08 10:23:57] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2021-05-08 10:23:57] [INFO ] [Real]Absence check using state equation in 28 ms returned sat
[2021-05-08 10:23:57] [INFO ] [Real]Added 25 Read/Feed constraints in 9 ms returned sat
[2021-05-08 10:23:57] [INFO ] Solution in real domain found non-integer solution.
[2021-05-08 10:23:57] [INFO ] [Nat]Absence check using 33 positive place invariants in 6 ms returned sat
[2021-05-08 10:23:57] [INFO ] [Nat]Absence check using 33 positive and 1 generalized place invariants in 1 ms returned sat
[2021-05-08 10:23:57] [INFO ] [Nat]Adding state equation constraints to refine reachable states.
[2021-05-08 10:23:57] [INFO ] [Nat]Absence check using state equation in 28 ms returned sat
[2021-05-08 10:23:57] [INFO ] [Nat]Added 25 Read/Feed constraints in 3 ms returned sat
[2021-05-08 10:23:57] [INFO ] Computed and/alt/rep : 97/241/97 causal constraints (skipped 7 transitions) in 10 ms.
[2021-05-08 10:23:57] [INFO ] Deduced a trap composed of 57 places in 43 ms of which 1 ms to minimize.
[2021-05-08 10:23:58] [INFO ] Trap strengthening (SAT) tested/added 2/1 trap constraints in 60 ms
[2021-05-08 10:23:58] [INFO ] Added : 52 causal constraints over 11 iterations in 183 ms. Result :sat
Attempting to minimize the solution found.
Minimization took 2 ms.
[2021-05-08 10:23:58] [INFO ] [Real]Absence check using 33 positive place invariants in 4 ms returned unsat
[2021-05-08 10:23:58] [INFO ] [Real]Absence check using 33 positive place invariants in 6 ms returned sat
[2021-05-08 10:23:58] [INFO ] [Real]Absence check using 33 positive and 1 generalized place invariants in 1 ms returned sat
[2021-05-08 10:23:58] [INFO ] [Real]Adding state equation constraints to refine reachable states.
[2021-05-08 10:23:58] [INFO ] [Real]Absence check using state equation in 29 ms returned sat
[2021-05-08 10:23:58] [INFO ] Solution in real domain found non-integer solution.
[2021-05-08 10:23:58] [INFO ] [Nat]Absence check using 33 positive place invariants in 6 ms returned sat
[2021-05-08 10:23:58] [INFO ] [Nat]Absence check using 33 positive and 1 generalized place invariants in 1 ms returned unsat
FORMULA AutoFlight-PT-05a-ReachabilityFireability-12 TRUE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
FORMULA AutoFlight-PT-05a-ReachabilityFireability-05 FALSE TECHNIQUES STRUCTURAL_REDUCTION TOPOLOGICAL SAT_SMT
Fused 4 Parikh solutions to 2 different solutions.
Incomplete Parikh walk after 10000 steps, including 253 resets, run finished after 46 ms. (steps per millisecond=217 ) properties (out of 2) seen :1 could not realise parikh vector
FORMULA AutoFlight-PT-05a-ReachabilityFireability-03 TRUE TECHNIQUES TOPOLOGICAL PARIKH_WALK
Incomplete Parikh walk after 6000 steps, including 281 resets, run finished after 26 ms. (steps per millisecond=230 ) properties (out of 1) seen :0 could not realise parikh vector
Support contains 13 out of 132 places. Attempting structural reductions.
Starting structural reductions, iteration 0 : 132/132 places, 105/105 transitions.
Drop transitions removed 10 transitions
Trivial Post-agglo rules discarded 10 transitions
Performed 10 trivial Post agglomeration. Transition count delta: 10
Iterating post reduction 0 with 10 rules applied. Total rules applied 10 place count 132 transition count 95
Reduce places removed 10 places and 0 transitions.
Performed 1 Post agglomeration using F-continuation condition.Transition count delta: 1
Iterating post reduction 1 with 11 rules applied. Total rules applied 21 place count 122 transition count 94
Reduce places removed 1 places and 0 transitions.
Iterating post reduction 2 with 1 rules applied. Total rules applied 22 place count 121 transition count 94
Performed 6 Pre agglomeration using Quasi-Persistent + Divergent Free condition..
Pre-agglomeration after 3 with 6 Pre rules applied. Total rules applied 22 place count 121 transition count 88
Deduced a syphon composed of 6 places in 0 ms
Reduce places removed 6 places and 0 transitions.
Iterating global reduction 3 with 12 rules applied. Total rules applied 34 place count 115 transition count 88
Performed 6 Post agglomeration using F-continuation condition.Transition count delta: 6
Deduced a syphon composed of 6 places in 0 ms
Reduce places removed 6 places and 0 transitions.
Iterating global reduction 3 with 12 rules applied. Total rules applied 46 place count 109 transition count 82
Free-agglomeration rule applied 6 times.
Iterating global reduction 3 with 6 rules applied. Total rules applied 52 place count 109 transition count 76
Reduce places removed 6 places and 0 transitions.
Iterating post reduction 3 with 6 rules applied. Total rules applied 58 place count 103 transition count 76
Applied a total of 58 rules in 37 ms. Remains 103 /132 variables (removed 29) and now considering 76/105 (removed 29) transitions.
Finished structural reductions, in 1 iterations. Remains : 103/132 places, 76/105 transitions.
[2021-05-08 10:23:58] [INFO ] Flatten gal took : 35 ms
[2021-05-08 10:23:58] [INFO ] Flatten gal took : 12 ms
[2021-05-08 10:23:58] [INFO ] Time to serialize gal into /tmp/ReachabilityCardinality12595012457359495560.gal : 7 ms
[2021-05-08 10:23:58] [INFO ] Time to serialize properties into /tmp/ReachabilityCardinality17571276457017852976.prop : 0 ms
Invoking ITS tools like this :CommandLine [args=[/home/mcc/BenchKit/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202104292328/bin/its-reach-linux64, --gc-threshold, 2000000, --quiet, -i, /tmp/ReachabilityCardinality12595012457359495560.gal, -t, CGAL, -reachable-file, /tmp/ReachabilityCardinality17571276457017852976.prop, --nowitness, --gen-order, FOLLOW], workingDir=/home/mcc/execution]

its-reach command run as :

/home/mcc/BenchKit/itstools/plugins/fr.lip6.move.gal.itstools.binaries_1.0.0.202104292328/bin/its-reach-linux64 --gc-threshold 2000000 --quiet -i /tmp/ReachabilityCardinality12595012457359495560.gal -t CGAL -reachable-file /tmp/ReachabilityCardinality17571276457017852976.prop --nowitness --gen-order FOLLOW
Loading property file /tmp/ReachabilityCardinality17571276457017852976.prop.
SDD proceeding with computation,1 properties remain. new max is 4
SDD size :1 after 3
SDD proceeding with computation,1 properties remain. new max is 8
SDD size :3 after 9
SDD proceeding with computation,1 properties remain. new max is 16
SDD size :9 after 33
SDD proceeding with computation,1 properties remain. new max is 32
SDD size :33 after 221
SDD proceeding with computation,1 properties remain. new max is 64
SDD size :221 after 263
SDD proceeding with computation,1 properties remain. new max is 128
SDD size :263 after 313
Reachability property AutoFlight-PT-05a-ReachabilityFireability-00 is true.
FORMULA AutoFlight-PT-05a-ReachabilityFireability-00 TRUE TECHNIQUES DECISION_DIAGRAMS TOPOLOGICAL COLLATERAL_PROCESSING
Found states matching all0 target predicate
Will report total states built up to this point. Computation was interrupted after 129 fixpoint passes
Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
petri\_inst\_inst,993,0.043726,4904,2,661,12,4530,6,0,450,2511,0
Total reachable state count : 993

Verifying 1 reachability properties.
Reachability property AutoFlight-PT-05a-ReachabilityFireability-00 is true.

Model ,|S| ,Time ,Mem(kb) ,fin. SDD ,fin. DDD ,peak SDD ,peak DDD ,SDD Hom ,SDD cache peak ,DDD Hom ,DDD cachepeak ,SHom cache
AutoFlight-PT-05a-ReachabilityFireability-00,24,0.052492,4904,2,169,12,4530,7,0,489,2511,0
All properties solved without resorting to model-checking.

BK_STOP 1620469439457

--------------------
content from stderr:

+ export BINDIR=/home/mcc/BenchKit/bin//../
+ BINDIR=/home/mcc/BenchKit/bin//../
++ pwd
+ export MODEL=/home/mcc/execution
+ MODEL=/home/mcc/execution
+ [[ ReachabilityFireability = StateSpace ]]
+ /home/mcc/BenchKit/bin//..//runeclipse.sh /home/mcc/execution ReachabilityFireability -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//..//greatspn/ -order META -manyOrder -smt -timeout 3600
+ ulimit -s 65536
+ [[ -z '' ]]
+ export LTSMIN_MEM_SIZE=8589934592
+ LTSMIN_MEM_SIZE=8589934592
++ cut -d . -f 9
++ ls /home/mcc/BenchKit/bin//..//itstools/plugins/fr.lip6.move.gal.application.pnmcc_1.0.0.202104292328.jar
+ VERSION=0
+ echo 'Running Version 0'
+ /home/mcc/BenchKit/bin//..//itstools/its-tools -data /home/mcc/execution/workspace -pnfolder /home/mcc/execution -examination ReachabilityFireability -spotpath /home/mcc/BenchKit/bin//..//ltlfilt -z3path /home/mcc/BenchKit/bin//..//z3/bin/z3 -yices2path /home/mcc/BenchKit/bin//..//yices/bin/yices -its -ltsmin -greatspnpath /home/mcc/BenchKit/bin//..//greatspn/ -order META -manyOrder -smt -timeout 3600 -vmargs -Dosgi.locking=none -Declipse.stateSaveDelayInterval=-1 -Dosgi.configuration.area=/tmp/.eclipse -Xss128m -Xms40m -Xmx16000m

Sequence of Actions to be Executed by the VM

This is useful if one wants to reexecute the tool in the VM from the submitted image disk.

set -x
# this is for BenchKit: configuration of major elements for the test
export BK_INPUT="AutoFlight-PT-05a"
export BK_EXAMINATION="ReachabilityFireability"
export BK_TOOL="itstools"
export BK_RESULT_DIR="/tmp/BK_RESULTS/OUTPUTS"
export BK_TIME_CONFINEMENT="3600"
export BK_MEMORY_CONFINEMENT="16384"
export BK_BIN_PATH="/home/mcc/BenchKit/bin/"

# this is specific to your benchmark or test

export BIN_DIR="$HOME/BenchKit/bin"

# remove the execution directoty if it exists (to avoid increse of .vmdk images)
if [ -d execution ] ; then
rm -rf execution
fi

# this is for BenchKit: explicit launching of the test
echo "====================================================================="
echo " Generated by BenchKit 2-4028"
echo " Executing tool itstools"
echo " Input is AutoFlight-PT-05a, examination is ReachabilityFireability"
echo " Time confinement is $BK_TIME_CONFINEMENT seconds"
echo " Memory confinement is 16384 MBytes"
echo " Number of cores is 4"
echo " Run identifier is r007-tall-162037990000439"
echo "====================================================================="
echo
echo "--------------------"
echo "preparation of the directory to be used:"

tar xzf /home/mcc/BenchKit/INPUTS/AutoFlight-PT-05a.tgz
mv AutoFlight-PT-05a execution
cd execution
if [ "ReachabilityFireability" = "ReachabilityDeadlock" ] || [ "ReachabilityFireability" = "UpperBounds" ] || [ "ReachabilityFireability" = "QuasiLiveness" ] || [ "ReachabilityFireability" = "StableMarking" ] || [ "ReachabilityFireability" = "Liveness" ] || [ "ReachabilityFireability" = "OneSafe" ] || [ "ReachabilityFireability" = "StateSpace" ]; then
rm -f GenericPropertiesVerdict.xml
fi
pwd
ls -lh

echo
echo "--------------------"
echo "content from stdout:"
echo
echo "=== Data for post analysis generated by BenchKit (invocation template)"
echo
if [ "ReachabilityFireability" = "UpperBounds" ] ; then
echo "The expected result is a vector of positive values"
echo NUM_VECTOR
elif [ "ReachabilityFireability" != "StateSpace" ] ; then
echo "The expected result is a vector of booleans"
echo BOOL_VECTOR
else
echo "no data necessary for post analysis"
fi
echo
if [ -f "ReachabilityFireability.txt" ] ; then
echo "here is the order used to build the result vector(from text file)"
for x in $(grep Property ReachabilityFireability.txt | cut -d ' ' -f 2 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ -f "ReachabilityFireability.xml" ] ; then # for cunf (txt files deleted;-)
echo echo "here is the order used to build the result vector(from xml file)"
for x in $(grep '' ReachabilityFireability.xml | cut -d '>' -f 2 | cut -d '<' -f 1 | sort -u) ; do
echo "FORMULA_NAME $x"
done
elif [ "ReachabilityFireability" = "ReachabilityDeadlock" ] || [ "ReachabilityFireability" = "QuasiLiveness" ] || [ "ReachabilityFireability" = "StableMarking" ] || [ "ReachabilityFireability" = "Liveness" ] || [ "ReachabilityFireability" = "OneSafe" ] ; then
echo "FORMULA_NAME ReachabilityFireability"
fi
echo
echo "=== Now, execution of the tool begins"
echo
echo -n "BK_START "
date -u +%s%3N
echo
timeout -s 9 $BK_TIME_CONFINEMENT bash -c "/home/mcc/BenchKit/BenchKit_head.sh 2> STDERR ; echo ; echo -n \"BK_STOP \" ; date -u +%s%3N"
if [ $? -eq 137 ] ; then
echo
echo "BK_TIME_CONFINEMENT_REACHED"
fi
echo
echo "--------------------"
echo "content from stderr:"
echo
cat STDERR ;